Table 7.
Compositions and OAV of odorous compounds in three different attractants.
| Compounds | RI1 | KI2 | Content (mg/kg) |
Threshold3 (mg/kg) | OAV |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chicken liver |
L. edodes |
T. molitor |
Chicken liver |
L. edodes |
T. molitor |
||||||||||
| SPME | SDE | SPME | SDE | SPME | SDE | SPME | SDE | SPME | SDE | SPME | SDE | ||||
| Alcohols | |||||||||||||||
| methyl mercaptan | 680 | 675 | 0.036 | -4 | 0.040 | - | - | - | 0.00024 | 151.42 | - | 165.72 | - | - | - |
| amyl alcohol | 1253 | 1255 | - | - | Tr5 | 2.710 | Tr | 1.656 | 0.14 | - | - | - | 19.26 | - | 11.82 |
| 3-octanol | 1388 | 1394 | 0.034 | - | 0.037 | - | Tr | - | 0.02 | 1.69 | - | 1.85 | - | - | - |
| furfuryl mercaptan | 1419 | 1430 | - | 16.985 | - | - | Tr | 18.898 | 0.00002 | - | 8.49×105 | - | - | - | 9.45×105 |
| 1-octen-3-ol | 1457 | 1456 | 0.156 | - | 0.355 | 20.948 | 0.016 | - | 0.026 | 6.02 | - | 13.66 | 805.71 | 0.63 | - |
| 2-ethyl-1-hexanol | 1473 | 1484 | 0.023 | - | Tr | - | Tr | - | 0.26 | 0.09 | - | - | - | - | - |
| Octanol | 1532 | 1564 | 0.024 | - | 0.013 | - | Tr | - | 0.037 | 0.65 | - | 0.36 | - | - | - |
| Furfuryl alcohol | 1625 | 1660 | 0.144 | 71.027 | - | - | Tr | 7.993 | 2 | 0.07 | 35.51 | - | - | - | 3.99 |
| phenethyl alcohol | 1918 | 1921 | - | - | 0.022 | 5.671 | - | - | 0.07 | - | - | 0.32 | 81.01 | - | - |
| Esters | |||||||||||||||
| dextro-bornyl acetate | 1576 | 1582 | - | - | Tr | 4.877 | - | - | 0.44 | - | - | - | 11.08 | - | - |
| gamma-butyrolactone | 1640 | 1643 | 0.029 | 6.095 | Tr | - | Tr | - | 0.0008 | 36.63 | 7618.69 | - | - | - | - |
| ethyl myristate | 2089 | 2070 | Tr | 4.243 | Tr | - | Tr | - | 0.18 | - | 23.57 | - | - | - | - |
| ethyl palmitate | 2221 | 2250 | - | 4.665 | - | 10.402 | - | - | 2 | - | 2.33 | - | 5.20 | - | - |
| Acids | |||||||||||||||
| acetic acid | 1455 | 1460 | 0.1528 | 44.671 | 0.031 | 16.348 | 0.047 | 18.898 | 0.025 | 6.11 | 1786.83 | 1.24 | 653.93 | 1.89 | 755.93 |
| Formic acid | 1461 | 1470 | Tr | - | Tr | - | Tr | - | 14.5 | - | - | - | - | - | - |
| Valeric acid | 1721 | 1734 | 0.014 | - | - | - | - | 0.864 | 0.001 | 13.85 | - | - | - | - | 864.41 |
| hexanoic acid | 1853 | 1831 | 0.031 | 3.460 | 0.052 | 8.948 | 0.101 | 36.051 | 0.012 | 2.53 | 288.33 | 4.34 | 745.70 | 8.43 | 3004.24 |
| octanoic acid | 2020 | 2039 | 0.039 | - | 0.044 | - | 0.067 | 2.695 | 0.037 | 1.06 | - | 1.2 | - | 1.82 | 72.84 |
| lauric acid | 2458 | 2493 | - | - | - | 43.555 | - | - | 0.1 | - | - | 0.04 | 435.55 | 0.02 | - |
| myristic acid | 2715 | 2716 | 0.011 | 79.365 | Tr | - | - | - | 10 | 0.001 | 7.94 | - | - | - | - |
| palmitic acid | 2901 | 2890 | - | 107.851 | - | - | - | 147.947 | 10 | - | 10.78 | - | - | - | 14.79 |
| Aldehydes | |||||||||||||||
| isovaleraldehyde | 918 | 924 | 0.082 | - | 0.040 | - | - | - | 0.003 | 27.31 | - | 13.26 | - | - | - |
| hexanal | 1077 | 1083 | Tr | 14.243 | Tr | 19.226 | Tr | 13.429 | 0.03 | - | 474.77 | - | 640.86 | - | 447.65 |
| (E)-2-pentenal | 1149 | 1134 | - | 0.914 | 0.012 | 18.213 | - | 1.893 | 1.4 | - | 0.65 | 0.01 | 13.01 | - | 1.35 |
| heptanal | 1187 | 1186 | - | - | - | 1.013 | - | 0.819 | 0.14 | - | - | - | 7.24 | - | 5.85 |
| 3-methyl-2-butenal | 1191 | 1206 | - | 14.601 | - | 14.393 | - | 14.402 | 0.5 | - | 29.2 | - | 28.77 | - | 28.8 |
| Octanal | 1295 | 1290 | - | - | Tr | 2.722 | Tr | 2.384 | 0.021 | - | - | - | 129.58 | - | 113.53 |
| nonanal | 1393 | 1396 | 0.072 | 2.291 | 0.019 | 2.226 | 0.020 | 1.875 | 0.02 | 3.58 | 114.54 | 0.96 | 111.29 | 0.98 | 93.73 |
| furfural | 1468 | 1476 | 0.253 | 1714.472 | 0.114 | 524.964 | 0.181 | 1337.541 | 0.25 | 1.01 | 6857.87 | 0.46 | 2099.87 | 0.72 | 5350.17 |
| methional | 1480 | 1480 | Tr | 31.691 | - | 10.639 | - | 2.311 | 0.06 | 0.12 | 528.19 | - | 177.31 | - | 38.51 |
| benzaldehyde | 1519 | 1530 | 0.295 | 4.801 | 0.395 | 5.897 | 0.611 | 11.667 | 0.61 | 0.48 | 7.87 | 0.65 | 9.67 | 1.01 | 19.13 |
| 5-methyl furfural | 1549 | 1558 | - | 1.045 | - | - | - | 1.559 | 1 | - | 1.04 | - | - | - | 1.56 |
| para-tolualdehyde | 1622 | 1638 | 0.020 | - | Tr | - | Tr | - | 0.0012 | 16.57 | - | - | - | - | - |
| phenyl acetaldehyde | 1660 | 1650 | 0.053 | 65.81 | - | - | 0.015 | 4.864 | 0.007 | 7.60 | 9401.44 | - | - | 2.12 | 694.92 |
| bread thiophene | 1745 | 1755 | 0.150 | 14.362 | Tr | 3.155 | 0.013 | 7.226 | 0.0045 | 33.32 | 3191.56 | 0.79 | 701.07 | 2.87 | 1605.78 |
| 2-undecenal | 1761 | 1759 | - | - | - | 19.516 | - | - | 0.1 | - | - | - | 195.16 | - | - |
| 2,4-decadienal | 1785 | 1797 | - | - | - | 9.129 | - | - | 0.0001 | - | - | - | 9.13×104 | - | - |
| 2-dodecenal | 1850 | 1842 | - | - | - | 20.019 | - | - | 0.0014 | - | - | - | 1.43×104 | - | - |
| cinnamaldehyde | 2058 | 2043 | 0.032 | - | Tr | - | Tr | - | 0.14 | 0.23 | - | - | - | - | - |
| Ketones | |||||||||||||||
| 3-hexanone | 1040 | 1050 | - | 7.395 | - | - | - | 6.056 | 0.06 | - | 123.24 | - | - | - | 100.94 |
| 3-penten-2-one | 1119 | 1126 | - | - | - | 4.916 | Tr | 3.463 | 0.07 | - | - | - | 70.23 | - | 49.47 |
| 2-heptanone | 1190 | 1189 | - | - | - | - | Tr | - | 0.045 | - | - | - | - | - | - |
| coffee furanone | 1240 | 1242 | - | 3.317 | - | 3.052 | Tr | 3.271 | 0.25 | - | 13.27 | - | 12.21 | - | 13.08 |
| 1-octen-3-one | 1314 | 1305 | 0.098 | - | 0.043 | - | - | - | 0.004 | 24.39 | - | 10.66 | - | - | - |
| 3-octen-2-one | 1425 | 1408 | - | - | - | - | Tr | - | 0.02 | - | - | - | - | - | - |
| 3-mercapto-2-pentanone | 1350 | 1343 | 0.010 | - | - | - | 0.010 | 1.689 | 0.0007 | 8.86 | - | - | - | 10.11 | 2413.24 |
| acetophenone | 1634 | 1645 | 0.054 | - | 0.010 | - | 0.014 | - | 0.065 | 0.84 | - | 0.16 | - | 0.21 | - |
| para-methylacetophenone | 1800 | 1797 | 0.012 | - | Tr | - | Tr | - | 0.01 | 1.25 | - | - | - | - | - |
| (E)-geranyl acetone | 1846 | 1858 | 0.023 | - | Tr | - | - | - | 0.186 | 0.13 | - | - | - | - | - |
| alpha-ionone | 1861 | 1860 | - | - | 0.028 | - | 0.010 | - | 0.0016 | - | - | 17.61 | - | 4.43 | - |
| beta-ionone | 1931 | 1947 | 0.024 | - | 0.019 | - | - | - | 0.0012 | 19.81 | - | 16.26 | - | - | - |
| Heterocyclics | |||||||||||||||
| thiophene | 1015 | 1021 | - | - | - | 14.864 | - | - | 0.006 | - | - | - | 2477.42 | - | - |
| 2-methyl thiophene | 1121 | 1100 | 0.044 | 5.780 | 0.017 | 8.961 | Tr | 4.278 | 0.08 | 0.55 | 72.25 | 0.21 | 112.02 | - | 53.46 |
| 2-pentyl furan | 1241 | 1231 | 0.010 | 0.392 | Tr | - | 0.018 | 3.017 | 0.27 | 0.04 | 1.45 | - | - | 0.07 | 11.17 |
| 3,4-dimethyl thiophene | 1255 | 1250 | - | - | Tr | 5.903 | - | - | 0.008 | - | - | - | 737.90 | - | - |
| fish thiol | 1306 | 1305 | - | - | - | - | 0.065 | - | 0.00007 | - | - | - | - | 927.97 | - |
| 2,5-dimethyl pyrazine | 1357 | 1348 | - | - | - | - | Tr | - | 0.87 | - | - | - | - | - | - |
| 2,3,5-trimethyl pyrazine | 1426 | 1422 | - | - | - | - | Tr | - | 0.05 | - | - | - | - | - | - |
| 2-acetyl furan | 1495 | 1488 | - | 3.472 | - | - | - | 2.842 | 10 | - | 0.35 | - | - | - | 0.28 |
| 1-furfuryl pyrrole | 1829 | 1820 | Tr | - | - | - | - | - | 0.1 | - | - | - | - | - | - |
| 2-acetyl pyrrole | 1989 | 1974 | Tr | 1.733 | - | - | Tr | 2.848 | 2 | - | 0.87 | - | - | - | 1.42 |
| methyl 2-methyl-3-furyl disulfide | 2105 | 2110 | 0.855 | - | 0.012 | - | 0.063 | - | 0.00001 | 8.55×104 | - | 1188.58 | - | 6319.92 | - |
| sulfurol | 2305 | 2302 | 0.474 | 15.157 | 0.094 | - | 0.120 | 37.575 | 0.03 | 15.80 | 505.24 | 3.13 | - | 4 | 1252.17 |
| indole | 2469 | 2453 | 0.017 | - | - | - | - | - | 0.0004 | 43.25 | - | - | - | - | - |
| Phenols | |||||||||||||||
| 2-(methyl thio) phenol | 1870 | 1873 | - | 3.911 | - | - | - | - | 0.8 | - | 4.90 | - | - | - | - |
| phenol | 1994 | 1989 | 0.037 | - | Tr | - | 0.013 | - | 0.046 | 0.80 | - | - | - | 0.29 | - |